Mutual control of electric and magnetic orders near room temperature in Al doped Y-type hexaferrite single crystals

Pengzheng Li; Mengfang Yu; Lin Yang; Qiutian Duan; Yinchen Wu; Aihua Zhang; Min Zeng; Meifeng Liu; Xingsen Gao

Journal of Materiomics (Mar 2025)

Mutual control of electric and magnetic orders near room temperature in Al doped Y-type hexaferrite single crystals

Pengzheng Li,
Mengfang Yu,
Lin Yang,
Qiutian Duan,
Yinchen Wu,
Aihua Zhang,
Min Zeng,
Meifeng Liu,
Xingsen Gao

Affiliations

Pengzheng Li: Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials and Institute for Advanced Materials, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou, 510006, Guangdong, China
Mengfang Yu: Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials and Institute for Advanced Materials, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou, 510006, Guangdong, China
Lin Yang: Academician Expert Workstation, Jinhua Polytechnic, Jinhua, 321017, Zhejiang, China; Corresponding author.
Qiutian Duan: Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials and Institute for Advanced Materials, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou, 510006, Guangdong, China
Yinchen Wu: Academician Expert Workstation, Jinhua Polytechnic, Jinhua, 321017, Zhejiang, China
Aihua Zhang: Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials and Institute for Advanced Materials, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou, 510006, Guangdong, China
Min Zeng: Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials and Institute for Advanced Materials, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou, 510006, Guangdong, China; Corresponding author.
Meifeng Liu: College of Physics and Electronic Science, Hubei Key Laboratory of Photoelectric Conversion Materials and Devices, Hubei Normal University, Huangshi, 435002, Hubei, China
Xingsen Gao: Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials and Institute for Advanced Materials, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou, 510006, Guangdong, China

Journal volume & issue: Vol. 11, no. 2
p. 100867

Abstract

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Realizing robust magnetoelectric (ME) coupling effect near room temperature is still a long-standing challenge for the application of multiferroic materials in next-generation low-power spintronic and memory devices. Here we report a systematic study on the magnetic, dielectric, and ME coupling properties of Y-type hexaferrite Ba0.5Sr1.5Co2Fe12–xAlxO22 (x = 0.0, 0.5, 1.0) single crystals. The Al doping can induce the shifting of the alternating longitudinal conical (ALC)-proper screw (PS) magnetic phase transition temperature from 200 K for x = 0–365 K for x = 1.0. The most interesting feature is that the Ba0.5Sr1.5Co2Fe11AlO22 single crystal displays a direct and converse ME coupling coefficient with αH ∼3,100 ps/m and αE ∼3,900 ps/m at 250 K, respectively, due to the Al-doped enhanced stability of ALC phase. Moreover, the exchange bias also verifies the strong coupling of electric and magnetic orders. These results provide a valuable insight on the modulation of ALC structure and the mechanism of ME effect in Y-type hexaferrites.

Published in Journal of Materiomics

ISSN: 2352-8478 (Print); 2352-8486 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering: Materials of engineering and construction. Mechanics of materials
Website: https://www.sciencedirect.com/journal/journal-of-materiomics

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